diff options
author | Glenn Miles <milesg@linux.vnet.ibm.com> | 2024-02-05 17:40:17 +1000 |
---|---|---|
committer | Nicholas Piggin <npiggin@gmail.com> | 2024-02-23 23:24:42 +1000 |
commit | 4d2cd2d8697164927620fe31f46f4a67e86c4f5f (patch) | |
tree | 01c913e3c91bc580b0d4a93f00fd6f041574eb37 /hw | |
parent | 6aa4ef32cc06e3846cb1b81d98211ceb96bdfea6 (diff) | |
download | qemu-4d2cd2d8697164927620fe31f46f4a67e86c4f5f.zip qemu-4d2cd2d8697164927620fe31f46f4a67e86c4f5f.tar.gz qemu-4d2cd2d8697164927620fe31f46f4a67e86c4f5f.tar.bz2 |
ppc/pnv: Test pnv i2c master and connected devices
Tests the following for both P9 and P10:
- I2C master POR status
- I2C master status after immediate reset
Tests the following for powernv10-ranier only:
- Config pca9552 hotplug device pins as inputs then
Read the INPUT0/1 registers to verify all pins are high
- Connected GPIO pin tests of P10 PCA9552 device. Tests
output of pins 0-4 affect input of pins 5-9 respectively.
- PCA9554 GPIO pins test. Tests input and ouput functionality.
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Glenn Miles <milesg@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Diffstat (limited to 'hw')
-rw-r--r-- | hw/ppc/pnv_i2c.c | 131 |
1 files changed, 1 insertions, 130 deletions
diff --git a/hw/ppc/pnv_i2c.c b/hw/ppc/pnv_i2c.c index 774946d..4581cc5 100644 --- a/hw/ppc/pnv_i2c.c +++ b/hw/ppc/pnv_i2c.c @@ -22,136 +22,7 @@ #include <libfdt.h> -/* I2C FIFO register */ -#define I2C_FIFO_REG 0x4 -#define I2C_FIFO PPC_BITMASK(0, 7) - -/* I2C command register */ -#define I2C_CMD_REG 0x5 -#define I2C_CMD_WITH_START PPC_BIT(0) -#define I2C_CMD_WITH_ADDR PPC_BIT(1) -#define I2C_CMD_READ_CONT PPC_BIT(2) -#define I2C_CMD_WITH_STOP PPC_BIT(3) -#define I2C_CMD_INTR_STEERING PPC_BITMASK(6, 7) /* P9 */ -#define I2C_CMD_INTR_STEER_HOST 1 -#define I2C_CMD_INTR_STEER_OCC 2 -#define I2C_CMD_DEV_ADDR PPC_BITMASK(8, 14) -#define I2C_CMD_READ_NOT_WRITE PPC_BIT(15) -#define I2C_CMD_LEN_BYTES PPC_BITMASK(16, 31) -#define I2C_MAX_TFR_LEN 0xfff0ull - -/* I2C mode register */ -#define I2C_MODE_REG 0x6 -#define I2C_MODE_BIT_RATE_DIV PPC_BITMASK(0, 15) -#define I2C_MODE_PORT_NUM PPC_BITMASK(16, 21) -#define I2C_MODE_ENHANCED PPC_BIT(28) -#define I2C_MODE_DIAGNOSTIC PPC_BIT(29) -#define I2C_MODE_PACING_ALLOW PPC_BIT(30) -#define I2C_MODE_WRAP PPC_BIT(31) - -/* I2C watermark register */ -#define I2C_WATERMARK_REG 0x7 -#define I2C_WATERMARK_HIGH PPC_BITMASK(16, 19) -#define I2C_WATERMARK_LOW PPC_BITMASK(24, 27) - -/* - * I2C interrupt mask and condition registers - * - * NB: The function of 0x9 and 0xa changes depending on whether you're reading - * or writing to them. When read they return the interrupt condition bits - * and on writes they update the interrupt mask register. - * - * The bit definitions are the same for all the interrupt registers. - */ -#define I2C_INTR_MASK_REG 0x8 - -#define I2C_INTR_RAW_COND_REG 0x9 /* read */ -#define I2C_INTR_MASK_OR_REG 0x9 /* write*/ - -#define I2C_INTR_COND_REG 0xa /* read */ -#define I2C_INTR_MASK_AND_REG 0xa /* write */ - -#define I2C_INTR_ALL PPC_BITMASK(16, 31) -#define I2C_INTR_INVALID_CMD PPC_BIT(16) -#define I2C_INTR_LBUS_PARITY_ERR PPC_BIT(17) -#define I2C_INTR_BKEND_OVERRUN_ERR PPC_BIT(18) -#define I2C_INTR_BKEND_ACCESS_ERR PPC_BIT(19) -#define I2C_INTR_ARBT_LOST_ERR PPC_BIT(20) -#define I2C_INTR_NACK_RCVD_ERR PPC_BIT(21) -#define I2C_INTR_DATA_REQ PPC_BIT(22) -#define I2C_INTR_CMD_COMP PPC_BIT(23) -#define I2C_INTR_STOP_ERR PPC_BIT(24) -#define I2C_INTR_I2C_BUSY PPC_BIT(25) -#define I2C_INTR_NOT_I2C_BUSY PPC_BIT(26) -#define I2C_INTR_SCL_EQ_1 PPC_BIT(28) -#define I2C_INTR_SCL_EQ_0 PPC_BIT(29) -#define I2C_INTR_SDA_EQ_1 PPC_BIT(30) -#define I2C_INTR_SDA_EQ_0 PPC_BIT(31) - -/* I2C status register */ -#define I2C_RESET_I2C_REG 0xb /* write */ -#define I2C_RESET_ERRORS 0xc -#define I2C_STAT_REG 0xb /* read */ -#define I2C_STAT_INVALID_CMD PPC_BIT(0) -#define I2C_STAT_LBUS_PARITY_ERR PPC_BIT(1) -#define I2C_STAT_BKEND_OVERRUN_ERR PPC_BIT(2) -#define I2C_STAT_BKEND_ACCESS_ERR PPC_BIT(3) -#define I2C_STAT_ARBT_LOST_ERR PPC_BIT(4) -#define I2C_STAT_NACK_RCVD_ERR PPC_BIT(5) -#define I2C_STAT_DATA_REQ PPC_BIT(6) -#define I2C_STAT_CMD_COMP PPC_BIT(7) -#define I2C_STAT_STOP_ERR PPC_BIT(8) -#define I2C_STAT_UPPER_THRS PPC_BITMASK(9, 15) -#define I2C_STAT_ANY_I2C_INTR PPC_BIT(16) -#define I2C_STAT_PORT_HISTORY_BUSY PPC_BIT(19) -#define I2C_STAT_SCL_INPUT_LEVEL PPC_BIT(20) -#define I2C_STAT_SDA_INPUT_LEVEL PPC_BIT(21) -#define I2C_STAT_PORT_BUSY PPC_BIT(22) -#define I2C_STAT_INTERFACE_BUSY PPC_BIT(23) -#define I2C_STAT_FIFO_ENTRY_COUNT PPC_BITMASK(24, 31) - -#define I2C_STAT_ANY_ERR (I2C_STAT_INVALID_CMD | I2C_STAT_LBUS_PARITY_ERR | \ - I2C_STAT_BKEND_OVERRUN_ERR | \ - I2C_STAT_BKEND_ACCESS_ERR | I2C_STAT_ARBT_LOST_ERR | \ - I2C_STAT_NACK_RCVD_ERR | I2C_STAT_STOP_ERR) - - -#define I2C_INTR_ACTIVE \ - ((I2C_STAT_ANY_ERR >> 16) | I2C_INTR_CMD_COMP | I2C_INTR_DATA_REQ) - -/* Pseudo-status used for timeouts */ -#define I2C_STAT_PSEUDO_TIMEOUT PPC_BIT(63) - -/* I2C extended status register */ -#define I2C_EXTD_STAT_REG 0xc -#define I2C_EXTD_STAT_FIFO_SIZE PPC_BITMASK(0, 7) -#define I2C_EXTD_STAT_MSM_CURSTATE PPC_BITMASK(11, 15) -#define I2C_EXTD_STAT_SCL_IN_SYNC PPC_BIT(16) -#define I2C_EXTD_STAT_SDA_IN_SYNC PPC_BIT(17) -#define I2C_EXTD_STAT_S_SCL PPC_BIT(18) -#define I2C_EXTD_STAT_S_SDA PPC_BIT(19) -#define I2C_EXTD_STAT_M_SCL PPC_BIT(20) -#define I2C_EXTD_STAT_M_SDA PPC_BIT(21) -#define I2C_EXTD_STAT_HIGH_WATER PPC_BIT(22) -#define I2C_EXTD_STAT_LOW_WATER PPC_BIT(23) -#define I2C_EXTD_STAT_I2C_BUSY PPC_BIT(24) -#define I2C_EXTD_STAT_SELF_BUSY PPC_BIT(25) -#define I2C_EXTD_STAT_I2C_VERSION PPC_BITMASK(27, 31) - -/* I2C residual front end/back end length */ -#define I2C_RESIDUAL_LEN_REG 0xd -#define I2C_RESIDUAL_FRONT_END PPC_BITMASK(0, 15) -#define I2C_RESIDUAL_BACK_END PPC_BITMASK(16, 31) - -/* Port busy register */ -#define I2C_PORT_BUSY_REG 0xe -#define I2C_SET_S_SCL_REG 0xd -#define I2C_RESET_S_SCL_REG 0xf -#define I2C_SET_S_SDA_REG 0x10 -#define I2C_RESET_S_SDA_REG 0x11 - -#define PNV_I2C_FIFO_SIZE 8 -#define PNV_I2C_MAX_BUSSES 64 +#include "hw/i2c/pnv_i2c_regs.h" static I2CBus *pnv_i2c_get_bus(PnvI2C *i2c) { |